Window.



PATENTED DEC. 25, 1906.

F. J. & H. G. CARL.

WINDOW.

APPLICATION FILED JU NE 17, 1905- 2 SHEETS-SHEET 2.

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FRANZ J. CARL AND HERMANN e CARL, OF CHICAGO, ILLINOIS.

WINDOW.

Specification of Letters Patent.

Patented Dec. 25, 1906.

Application filed June 17, 1905. Serial No. 265,827.

To all whom it nuty concern:

Be it known that we, FRANZ J. CARL, a citizen of the United States, andHERMANN G. CARL, a subject of the German Emperor, re-

siding in the city of Chicago, in the county of Cook and State ofIllinois, have invented a new and useful Improvement in Windows, ofwhich the following is a specification.

This invention is an improvement upon the construction of windows setforth in our Patents No. 741,457, of October 13, 1903, and No. 778,565,of December 27, 1904.

The invention applies to the same kind of windows as those shown in thepatents namely, windows where both the upper and lower sashes aremovable vertically and also capable of swingingand the nature of thepresent improvement is fully set forth below and also illustrated in theaccompanying drawings, in which- Figure 1 is a side elevation of awindow embodying our invention. Figs. 2, 3, and 4 are sections upon thelines 2 2, 3 3, and 4 4, respectively, of Fig. 1, Fig. 4 being enlarged.Fig. 5 is a section on the line 5 5 of Fig. 4. Fig. 6 is an enlargedview of a portion of Fig. 3.. Figs. 7 and 8 are detached views of thelower and upper sash, respectively. Fig. 9 is a detail view.

In the drawings, 15 represents the windowcasing; 16, the upper sash; 17,the lower sash; 18, the balanceaveight of the upper sash, and 19 thebalance-weight of the lower sash. The weights are connected to thesashes by cords passing over pulleys in the usual manner. Only oneweight is used with either sash in order that one side of each may befree to swing open without detaching any sash-cord. Each sash is alsoprovided on the side to which the sash-cord is attached with hingingdevices. In the case of the upper sash, eyes 20 and 21, the openingthrough which is vertical, are secured one to the top rail and the otherto the meeting-rail, and the casing is provided with a pivot 22, adaptedto enter the eye 20 when the sash is lowered, and with a pivot 23,adapted to enter the eye 21 when the sash is raised. The casing isfurther provided with a pivot 24, adapted to enter the eye 21 when thesash is in its lowest position. In the swinging of the upper sash it issupported upon the pivots 22 and 24. The casing is grooved to give roomto the weightchain of the sash on one side at 70, and it is also groovedupon the opposite side at 71 to give room or form a way for theantifriction-pulley 25 and a Wedge 26, which are attached to the edge ofthe upper sash and project therefrom into the casing-groove, the side ofthe groove 71 being cut away at points opposite the roller and the wedgewhen the sash is lowered to its swinging position. At its top the uppersash is provided with a socket adapted to receive a depending wedge 27,attached to the casing. The entrance of this wedge into the socketcreates such friction as to hold the sash up and also presses it 0%oselyagainst the casing and prevents ratt ing.

The lower sash is hinged at the opposite side of the casing from theupper one, and it carries the upper pivot 30 and the eye 31 of its lowerhinge. The casing supports the eye 32 of the upper hinge and the pivot33 of the lower hinge. Both pivots of the lower sash have considerablelength, as will be noted, so as to permit it to be raised against thestop 40, attached to the casing, as and for the pur pose hereinafterfully explained. Upon its swinging edge the lower sash is provided withan antifriction-pulley 41 and also with two movable wedges 42 and 43,adapted to coact with the stationary cams or inclines 44 and 45, securedto the casing, in holding the sash against vibration or rattling. Forlocking the lower sash in its closed position I provide a stop 46,adapted to be inserted by hand in an opening 47 in the adjacent part ofthe casing. The guide-strip 48 at the inner side of the groove in whichthe guide-pulley and wedges travel is cut away opposite the positionsoccupied by the roller and wedges when the sash is in its swingingposition, as shown at 49 and 50.

hen the sash is to be swung open, it is necessarily raised sufiicientlyto enable it to avoid interference with the window-sill 51, and in orderto limit this raising movement, so that the roller and wedges may notpass beyond the openings provided for them in the guide-strip and alsoso the sash may not move far enough to separate pivot 30 from eye 32 oreye 31 from pivot 33, the stop 40 is secured to the casing at the pointindicated, so it may arrest the upward movement by its contact with theupper pivot. This stop is that movement.

gravity and arrests the upward movement, as stated; but it may be thrownout of service entirely by turning it to its non-acting position andthen by tightening the screw, so as to prevent its swingingautomatically. The body of the stop is flush with the surface of thecasing, but does not project far enough to encounter the sashpivots, andit may be provided with an attaching-plate sunken within the casing,this being the construction shown. The two sashes may be locked togetherby any suitable fastenersuch, for instance, as that shown at 54. Thestop 46 is preferably provided with a chain upon which it may besuspended when taken out of its acting position.

Our window is provided with a screen 60, which is adapted to serve itspurpose with either the upper or the lower portion of the window open.It is vertically movable, having flanges 61 and 62 on its side edgesentering and traveling in grooves 63 and 64 in the casing, and isprovided with one or more lockingbolts 65, adapted to lock the screen inits different positions. We prefer to make the screen removable when inits lower position by deepening the channels 63 and 64, so that bymoving the screen when in that position toward either side the flange onthe opposite side will be freed from its guide-channel, and in orderthat the screen may not get so far to one side as to free it from itsguide-channels when that result is not desired we place springs 66 inthe channels, which restrain the screen from this sidewise movement. Theupper part of channel 63 is partially filled as, for instance, by theblocks 67, having inward movement of the lower sash preparatory toswinging it open, and adapted to be moved out of the way of the sash atwill and also adapted to be moved out of the way by the sash whendescending.

' 2. The combination with the verticallysliding andhorizontally-swinging sash, of a freely-swinging stop 40 having anoutstanding rib normally in position to arrest the upward movement ofthe lower sash preparatory to swinging it open and adapted to be movedout of the way of the sash at will and also adapted to be moved out ofthe way by the sash when descending.

3. The combination with the vertically sliding and horizontally-swingingsash, of a freely-swinging stop 40 normally in position to arrest theupward movement of the lower sash and adapted to be moved out of the wayof the sash at will, said stop being also pro vided with an inclinedsurface whereby the sash may when moving down automatically swing thestop out of the way.

FRANZ J. CARL. HERMANN G. CARL.

Witnesses:

H. M. MUNDAY, EDw. S. EVARTS.

